Pre-heat the oven to 350 degrees F and lightly grease a muffin tin.
Prepare the tortillas by cutting off the edges so that you have a large square and then cut those into 4 smaller squares (see video above for reference).
Gently tuck a tortilla square into each muffin tin, folding over the sides as needed (again, see video for reference). Place a heaping tablespoon into each tin and then top with another tortilla square so that it gently flattens the beans. Bake for 12 minutes.